CN104229675B - Anti-falling mechanism and hydraulic lifting device utilizing same - Google Patents
Anti-falling mechanism and hydraulic lifting device utilizing same Download PDFInfo
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- CN104229675B CN104229675B CN201410500012.0A CN201410500012A CN104229675B CN 104229675 B CN104229675 B CN 104229675B CN 201410500012 A CN201410500012 A CN 201410500012A CN 104229675 B CN104229675 B CN 104229675B
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Abstract
The invention relates to an anti-falling mechanism which is arranged on a hydraulic lifting device and used for preventing a lifting slide block from falling. The anti-falling mechanism comprises an air cylinder, a telescopic shaft, an anti-falling gear and an anti-falling rack, wherein the air cylinder is connected with the lifting slide block, the telescopic shaft is connected with a piston of the air cylinder, the anti-falling gear is arranged on the end part of the telescopic shaft, and the anti-falling rack is arranged in the hydraulic lifting device along the lifting direction of the lifting slide block; when the air cylinder stretches out, the piston of the air cylinder drives the anti-falling gear to be engaged with the anti-falling rack through an elastic element and the telescopic shaft, and when the air cylinder is retracted, the anti-falling gear is separated from the anti-falling rack. The anti-falling mechanism is simple in structure and capable of avoiding the potential safety hazard caused by the decompression of a hydraulic system, and the safety of the hydraulic lifting device utilizing the anti-falling mechanism can be greatly improved.
Description
Technical field
The present invention relates to machining equipment field, and in particular to a kind of hydraulic lifting device and be applied to the device
In anti-fall mechanism.
Background technology
Hydraulic lifting device is in field of machining using very universal.For example used in weld job for weight
The positioner of big workpiece is carried,, in order to ensure displacement angle, clamping height can be higher for it, so need the positioner of lift.And
Up-down mode generally has motor chain lifting, the lifting of motor leading screw and hydraulic pressure lift etc..Wherein, in descaling lift positioner
If hydraulic lifting system pressure release, the workpiece of institute's clamping can fall with lowering or hoisting gear, there is larger potential safety hazard.
The content of the invention
It is an object of the invention to provide a kind of anti-air crash for being applied in hydraulic lifting device prevent falling accident
Structure.
To reach above-mentioned purpose, the technical solution used in the present invention is：
A kind of anti-fall mechanism, being arranged on hydraulic lifting device prevents its lifting slider from falling, described anti-fall mechanism
The telescopic shaft that is connected with the piston of described cylinder including the cylinder being connected with described lifting slider, by elastic component,
It is arranged at the anti-fall tooth of the end of described telescopic shaft, is arranged at described fluid pressure type along the lifting direction of described lifting slider
Anti-fall tooth bar in lowering or hoisting gear；When described cylinder stretches out, the piston of described cylinder passes through described elastic component and institute
The telescopic shaft stated drives described anti-fall tooth to be meshed with described anti-fall tooth bar, and when described cylinders retract, described is anti-
Pendant tooth is separated with described anti-fall tooth bar.
Preferably, described anti-fall mechanism also includes adpting flange, slip cap, positioning and guiding set, the cylinder of described cylinder
Body and described positioning and guiding set are fixedly arranged on respectively the two ends of described adpting flange, and described slip cap is slidably sheathed on institute
In the positioning and guiding set stated, the piston of described cylinder is mutually fixedly connected and stretches into described slip cap with described slip cap
In, described elastic component, described sliding axle may be contained within described slip cap and described positioning and guiding set.
Preferably, described cylinder is connected to the one end of described adpting flange by cylinder pinboard.
Preferably, offer step trough on the piston of described cylinder and be provided with locking nut, described locking nut
It is arranged in described slip cap, described locking nut and described step trough are by the piston of described cylinder and described cunning
Dynamic set is mutually fixedly connected.
Preferably, described elastic component is spring, and the elastic direction of described spring and the piston of described cylinder
Axially in the same direction.
Preferably, the magnet ring the detection means whether described cylinder of detection is fully retracted, institute are installed on described cylinder
The magnet ring detection means stated is connected with the control system of described hydraulic lifting device.
Present invention also offers a kind of hydraulic lifting device using above-mentioned anti-fall mechanism.
A kind of hydraulic lifting device using above-mentioned anti-fall mechanism, including described anti-fall mechanism and base cabinet,
The column on base cabinet that is vertically arranged and states, the lifting slider along described column up-down, drive described liter valency slide block
The hydraulic power unit of lifting, described anti-fall mechanism is connected with described lifting slider, and the anti-fall tooth of described anti-fall mechanism
Bar is vertically arranged along described column.
Preferably, described column includes left column and the right column being oppositely arranged in parallel, and described lifting slider is arranged
Between described left column and described right column.
Preferably, described hydraulic lifting device is hydraulic up-down positioner, and it also includes being arranged at described liter
The modified gear conjugated for clamping workpiece on drop slide block.
Preferably, described modified gear is L-type modified gear, and it includes the swing arm being connected with described lifting slider
Casing, the L arm casings installed perpendicular to described swing arm casing.
Because above-mentioned technical proposal is used, the present invention has compared with prior art following advantages：The anti-air crash of the present invention
Structure simple structure, the potential safety hazard that hydraulic system pressure release can be avoided to bring, using the safety of its hydraulic lifting device
It is greatly improved.
Description of the drawings
Accompanying drawing 1 is the main view partial sectional view of hydraulic up-down positioner.
Accompanying drawing 2 regards schematic diagram for the right side of hydraulic up-down positioner.
Accompanying drawing 3 is the structure enlarged diagram of the anti-fall mechanism in I portions in hydraulic up-down positioner.
In the figures above：1st, left column；2nd, right column；3rd, lifting slider；4th, hydraulic power unit；5th, modified gear；6th, it is anti-fall
Mechanism；7th, swing arm casing；8th, L arms casing；9th, base cabinet；10th, cylinder；11st, spring；12nd, telescopic shaft；13rd, anti-fall tooth；14、
Anti-fall tooth bar；15th, adpting flange；16th, slip cap；17th, positioning and guiding set；18th, cylinder pinboard；19th, locking nut.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described for shown embodiment.
Embodiment one：Referring to shown in accompanying drawing 1 and accompanying drawing 2.A kind of hydraulic lifting device, specifically with hydraulic up-down displacement
As a example by machine.The hydraulic up-down positioner includes base cabinet 9, left column 1, right column 2, lifting slider 3, hydraulic power unit 4, change
Position mechanism 5 and anti-fall mechanism 6.Left column 1 and right column 2 are vertically arranged on base cabinet 9, and the two is parallel and has
Certain interval, lifting slider 3 is located between left column 1 and right column 2, and it can be along left column 1 under the driving of hydraulic power unit 4
With the lifting that slides axially of right column 2.It is arranged on lifting slider 3 for the modified gear 5 that clamping workpiece is conjugated and energy
Enough to lift therewith, in the present embodiment, modified gear 5 is L-type modified gear, and it includes the swing arm case being connected with lifting slider 3
Body 7, the L arms casing 8 installed perpendicular to swing arm casing 7.
As shown in Figure 3, anti-fall mechanism 6 is connected with lifting slider 3, it include cylinder 10, elastic component, telescopic shaft 12,
Anti-fall tooth 13 and anti-fall tooth bar 14.The cylinder body of cylinder 10 is connected with lifting slider 3, and the piston of cylinder 10 is by elastic component
It is connected with one end of telescopic shaft 12, the telescopic direction of elastic component is identical with the telescopic direction of the piston of cylinder 10, and anti-fall tooth
13 the other end for being fixedly arranged on telescopic shaft 12.Anti-fall tooth bar 14 is vertically arranged along the side of right column 2, erects on anti-fall tooth bar 14
It is in line to be furnished with some teeth, two flank of tooth for including vertically distribution of each tooth, wherein, positioned at the approximate water of the flank of tooth of previous position
It is flat, and the flank of tooth for being located at lower position is inclined.In the present embodiment, elastic component selects spring 11, its elastic direction and cylinder 10
The axial direction of piston is in the same direction.
The anti-fall mechanism 6 also includes adpting flange 15, slip cap 16 and positioning and guiding set 17.The cylinder body of cylinder 10 passes through gas
Cylinder pinboard 18 and be fixedly arranged on one end of adpting flange 15, the other ends that positioning and guiding set 17 is fixedly arranged on adpting flange 15.Slide
Set 16 is slidably sheathed in positioning and guiding set 17, and the piston of cylinder 10 is mutually fixedly connected and stretches into slip cap 16 with slip cap 16
In, step trough is offered on the piston of cylinder 10 and locking nut 19 is provided with, locking nut 19 is arranged in slip cap 16, lock
Tight nut 19 is mutually fixedly connected the piston of cylinder 10 with step trough with slip cap 16.Elastic component, sliding axle may be contained within sliding
In set 16 and positioning and guiding set 17.
It is also equipped with detecting the magnet ring detection means whether cylinder is fully retracted, magnet ring detection means and hydraulic pressure on cylinder 10
Control system in formula lowering or hoisting gear is connected.
Cylinder 10 being capable of telescopic piston under the control of its control system.When cylinder 10 stretches out, the piston of cylinder 10
Anti-fall tooth 13 is driven to be meshed with anti-fall tooth bar 14 by elastic component and telescopic shaft 12, so as to prevent to be connected with anti-fall mechanism 6
Lifting slider 3 drop；And when cylinder 10 is retracted, anti-fall tooth 13 is separated with anti-fall tooth bar 14, lifting slider 3 can rise
Drop.Specifically, the course of work of above-mentioned anti-fall mechanism and lifting slider 3 includes following several situations：
1st, lifting slider 3 stops：3 liters of lifting slider is down to certain altitude, and cylinder 10 stretches out and holds out against, by slip cap 16,
Spring 11, telescopic shaft 12 drive anti-fall tooth 13 to be engaged on anti-fall tooth bar 14.The tooth top of anti-fall tooth 13 may be with anti-fall tooth bar 14
Tooth top is collided, and when lifting slider 3 is weightless to be declined, spring 11 can hold out against expansion link and drive anti-fall tooth 13 to nibble with anti-fall tooth bar 14
Close, it is ensured that lifting slider 3 is not descending；
2nd, lifting slider 3 is up：Cylinder 10 is retracted, and drives anti-fall tooth 13 to be disengaged from by slip cap 16, telescopic shaft 12
Simultaneously the hoist cylinder in hydraulic system stretches out and drives lifting slider 3 up.If oil cylinder lifting front air cylinder 10 is not retracted, anti-fall tooth
There is hard friction with anti-fall tooth 13 in bar 14, and working long hours can damage anti-fall tooth 13, and by spring 11 anti-fall tooth 13 can be mitigated
Abrasion；
3rd, lifting slider 3 is descending：Simultaneously hoist cylinder stretches out the retraction of cylinder 10, drives lifting slider 3 up, on cylinder 10
Magnet ring detection means is installed, when system detectio is fully retracted to cylinder 10, HYDRAULIC CONTROL SYSTEM hoist cylinder is retracted, and lifting is slided
Block 3 is descending.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.It is all according to the present invention
Equivalence changes or modification that spirit is made, all should be included within the scope of the present invention.
Claims (9)
1. a kind of anti-fall mechanism, being arranged on hydraulic lifting device prevents its lifting slider from falling, it is characterised in that：Described
Anti-fall mechanism is included the cylinder being connected with described lifting slider, is connected with the piston of described cylinder by elastic component
Telescopic shaft, be arranged at described telescopic shaft end anti-fall tooth, be arranged at along the lifting direction of described lifting slider it is described
Hydraulic lifting device in anti-fall tooth bar；When described cylinder stretches out, the piston of described cylinder passes through described bullet
Property part and described telescopic shaft drive described anti-fall tooth to be meshed with described anti-fall tooth bar, when described cylinders retract,
Described anti-fall tooth is separated with described anti-fall tooth bar, and described anti-fall mechanism also includes that adpting flange, slip cap, positioning are led
To set, the cylinder body of described cylinder and described positioning and guiding set are fixedly arranged on respectively the two ends of described adpting flange, described
Slip cap is slidably sheathed in described positioning and guiding set, and the piston of described cylinder is mutually fixedly connected with described slip cap
And stretch in described slip cap, described elastic component, described telescopic shaft may be contained within described slip cap and described determine
In the fairlead of position.
2. anti-fall mechanism according to claim 1, it is characterised in that：Described cylinder is connected to by cylinder pinboard
The one end of described adpting flange.
3. anti-fall mechanism according to claim 1, it is characterised in that：Step trough is offered on the piston of described cylinder simultaneously
It is provided with locking nut, described locking nut is arranged in described slip cap, described locking nut and described ladder
Groove is mutually fixedly connected the piston of described cylinder with described slip cap.
4. anti-fall mechanism according to claim 1, it is characterised in that：Described elastic component is spring, and described spring
Elastic direction and the piston of described cylinder axially in the same direction.
5. the anti-fall mechanism according to Claims 2 or 3, it is characterised in that：It is provided with described cylinder described in detection
The magnet ring detection means whether cylinder is fully retracted, the control of described magnet ring detection means with described hydraulic lifting device
System is connected.
6. the hydraulic lifting device of the anti-fall mechanism described in a kind of application claim 1, it is characterised in that：It includes described
Anti-fall mechanism and base cabinet, the column being vertically arranged on described base cabinet, along the lifting of described column up-down
Slide block, the hydraulic power unit for driving described lifting slider lifting, described anti-fall mechanism is connected with described lifting slider, and
The anti-fall tooth bar of described anti-fall mechanism is vertically arranged along described column.
7. hydraulic lifting device according to claim 6, it is characterised in that：Described column includes being oppositely arranged in parallel
Left column and right column, described lifting slider is arranged between described left column and described right column.
8. hydraulic lifting device according to claim 6, it is characterised in that：Described hydraulic lifting device is hydraulic pressure
Formula up-down deflection machine, it also includes being arranged at the modified gear conjugated for clamping workpiece on described lifting slider.
9. hydraulic lifting device according to claim 8, it is characterised in that：Described modified gear is L-type positioner
Structure, it includes the swing arm casing being connected with described lifting slider, the L arm casings installed perpendicular to described swing arm casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500012.0A CN104229675B (en) | 2014-09-26 | 2014-09-26 | Anti-falling mechanism and hydraulic lifting device utilizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500012.0A CN104229675B (en) | 2014-09-26 | 2014-09-26 | Anti-falling mechanism and hydraulic lifting device utilizing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104229675A CN104229675A (en) | 2014-12-24 |
| CN104229675B true CN104229675B (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410500012.0A Active CN104229675B (en) | 2014-09-26 | 2014-09-26 | Anti-falling mechanism and hydraulic lifting device utilizing same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110642184A (en) * | 2019-09-26 | 2020-01-03 | 赛埃孚汽车保修设备（太仓）有限公司 | Electric control automobile lifting machine convenient to maintain and working method thereof |
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| CN105314565A (en) * | 2015-11-16 | 2016-02-10 | 江苏丰东热技术股份有限公司 | Automatic locking device of hydraulic elevating platform for furnace |
| CN105967097A (en) * | 2016-06-16 | 2016-09-28 | 成都迅德科技有限公司 | Novel lifting device for building |
| CN109095391A (en) * | 2018-10-11 | 2018-12-28 | 毛建国 | A kind of hydraulic elevator |
| CN109650293A (en) * | 2019-02-20 | 2019-04-19 | 深圳市智佳能自动化有限公司 | A kind of locking disconnected safety device of mechanical chain |
| CN110002361B (en) * | 2019-04-30 | 2023-10-20 | 中建八局第一建设有限公司 | Integrated lifting material table with overload early warning device |
| CN110485847A (en) * | 2019-08-12 | 2019-11-22 | 安徽皖泰门业科技有限公司 | A kind of lifting device of lever gear door |
| CN112174013B (en) * | 2020-09-28 | 2022-03-01 | 中天科技集团海洋工程有限公司 | Carrying device for impeller and carrying method thereof |
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| SU1284938A1 (en) * | 1985-02-06 | 1987-01-23 | Предприятие П/Я А-3404 | Device for step-by-step movement of platform |
| JPH01242400A (en) * | 1988-03-17 | 1989-09-27 | Yutani Heavy Ind Ltd | Positioner drop preventive device |
| CN202274036U (en) * | 2011-09-23 | 2012-06-13 | 宁波一力减震器有限公司 | Air spring |
| CN202625769U (en) * | 2012-05-08 | 2012-12-26 | 伯曼机械制造（上海）有限公司 | Safety device of pneumatic type hoisting frame |
| CN202673822U (en) * | 2012-05-31 | 2013-01-16 | 徐州天龙液压机械有限公司 | Automatic reset cylinder |
| CN203101060U (en) * | 2013-01-31 | 2013-07-31 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile transmission system test board |
| CN204151019U (en) * | 2014-09-26 | 2015-02-11 | 徐州华恒机器人系统有限公司 | Safety dropping prevent mechanism and apply its hydraulic lifting device |
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- 2014-09-26 CN CN201410500012.0A patent/CN104229675B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642184A (en) * | 2019-09-26 | 2020-01-03 | 赛埃孚汽车保修设备（太仓）有限公司 | Electric control automobile lifting machine convenient to maintain and working method thereof |
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| CN104229675A (en) | 2014-12-24 |
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